Enhanced safety device for an electrical appliance
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United States of America Patent
Stats
-
Oct 30, 1990
Issued Date -
N/A
app pub date -
May 22, 1989
filing date -
Feb 13, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety device adapted for use in a hand held tool for minimizing electrical shock to a user includes a ground plane disposed inside the electrical tool, which, should the tool become immersed in water or become unreasonaly wet, provides a path for electrical current, which energizes a solenoid which, in turn, interrupts the AC power supply. The safety device is preferably encased in a variety of module. The safety device contains a power supply, such as a battery and/or electret, that is independent of the AC power supply. Thus, the safety device can be tripped even if the tool is not turned on.
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